Comment 11 for bug 1539158

I asked this because I read that it's dangerous switch in RW mode.

At this url: http://askubuntu.com/questions/600065/consequences-of-using-apt-get-in-ubuntu-touch
I read this: http://askubuntu.com/a/600313

['evergreen' answer]
"By default the system is read-only. You can switch to read-write mode, although this disables Ubuntu system upgrades.The main purpose for this is developing the Ubuntu system directly. This is not required for developing apps or using the system normally. Recovering from read-write mode is possible but requires reinstalling the system from scratch. Warning: Switching a device to read-write mode (and/or recovering from it) is an advanced feature and may result in complete data loss. Warning: Switching a device to read-write mode disables automatic over-the-air delta updates. Accepting a full over-the-air update after making a device writable may undo changes you have made."